The document deals with research on expected reduction in the number of accidents and in the number of injured and killed persons on the assumption that it would be possible to achieve improved observance of speed limits through a new surveillance technique. The calculation was primarily made for the national roads limited to 70, 90 and 110 km/h. These roads can generally be regarded as rural roads. The results of the calculations for the national roads limited to 70, 90 and 110 km/h show that the expected accident reductions would be around 10% and 15% respectively for the two levels of improved observance. The estimate for urban areas shows that the number of accidents could be expected to decrease by about 5% and 10% respectively for the two levels of improved observance.

Supplemental Notes:

Text in Swedish; summary in Swedish and English. Also pub. as ISSN-0347-6049.